package com.hzm.web.admin;

import com.hzm.pojo.Tag;
import com.hzm.service.TagService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.web.PageableDefault;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.validation.Valid;

@Controller
@RequestMapping("/admin")
public class TagController {
    @Autowired
    private TagService TagService;

    @GetMapping("/tags")
    public String Tags(@PageableDefault(size = 10,sort = {"id"},direction = Sort.Direction.DESC)
                        Pageable pageable, Model model){
        //查询全部
        model.addAttribute("page",TagService.listTag(pageable));
        return "admin/tags";
    }


    @GetMapping("/tags/input")
    public String input(Model model) {
        model.addAttribute("tag", new Tag());
        System.out.println("tags========="+new Tag());
        return "admin/tags-input";
    }

    @PostMapping("/tags")
    public String post(@Valid Tag Tag, BindingResult result, RedirectAttributes attributes) {
        Tag Tag1 = TagService.getTagByName(Tag.getName());
        if (Tag1 != null) {
            result.rejectValue("name","nameError","不能添加重复的分类");
        }
        if (result.hasErrors()) {
            return "admin/tags-input";
        }
        Tag t = TagService.saveTag(Tag);
        if (t == null ) {
            attributes.addFlashAttribute("message", "新增失败");
        } else {
            attributes.addFlashAttribute("message", "新增成功");
        }
        return "redirect:/admin/tags";
    }


    /**
     * 点击进行编辑
     * @param id
     * @param model
     * @return
     */

    @GetMapping("/tags/{id}/input")
    public String editInput(@PathVariable Long id, Model model) {
        model.addAttribute("Tag", TagService.getTag(id));
        return "admin/tags-input";
    }

    @PostMapping("/tags/{id}")
    public String editPost(@Valid Tag Tag, BindingResult result, @PathVariable Long id, RedirectAttributes attributes) {
        Tag Tag1 = TagService.getTagByName(Tag.getName());
        if (Tag1 != null) {
            result.rejectValue("name","nameError","不能添加重复的分类");
        }
        if (result.hasErrors()) {
            return "admin/tags-input";
        }
        Tag t = TagService.updateTag(id,Tag);
        if (t == null ) {
            attributes.addFlashAttribute("message", "更新失败");
        } else {
            attributes.addFlashAttribute("message", "更新成功");
        }
        return "redirect:/admin/tags";
    }


    @GetMapping("/Tags/{id}/delete")
    public String delete(@PathVariable Long id,RedirectAttributes attributes) {
        TagService.deleteTag(id);
        attributes.addFlashAttribute("message", "删除成功");
        return "redirect:/admin/tags";
    }
}
